PENTANDRIA. DIGYNIA. ee: a 
vicinity of New Orleans, from whence it was acciden- 
| tally imported to ‘Philadelphia, in a box of earth, with 
he other plants, by Mr. R. E. Griffiths who favoured me with 
Z ‘ living specimens. : 
_ Descripr. Root slender, fusiform, annual. Stem nearly 
simple, or dividing into 2 or 3 branches towards the base 
i . orthe middle, smooth, even and slender, about a foot 
| “high, and nearly floriferous from the base. Leaves rather 
| . distant, , ag having smail membranaceous abrupt 
| sheaths, larger leaves subtriternately divided, ultimate ~~ 
segments bifid and trifid, very smooth, linear and acute. 
| _ Umbell entirely sessile, arising from the sheath of the — 
leaf on the opposite side of thestem, bifid or trifid without 
any vestige of a proper general or partial involucrum. 
Umbellet 10, 12 to, 15-flowered, more or less; pedicells 
. short. Calix none. . Petals subovate, acute, erect, equal ~ 
and entire, with the points a little incurved, externally 
rosaceous, Within whitish. Styles not visible, stigmas — 
in all stages like so many subcapitate sessile points. Sta- 
mina shorter than the corolla, anthers purplish. Fruit 
roundish-ovate, corticate, and laterally subcompressed; 
| _ commissure flat and striate, oblong-elliptic. Seed green- 
; ish-grey, scarcely larger than that of Mignionette, gib- 
bously convex, scored with 5 converging, angular and 
turgid ridges; intervals acute-angular, and striate. Sen- 
sible properties and structure of the seed not very dissi- 
milar to that of Cicuta maculata, the primary ridges are, 
however, less obtuse and interlaid with striz not with tu- — 
bercular granulations. 
276. CICUTA. L. (Water-Hemlock, Water- 
+ Cowbane.) ; 
ip Fruit corticate, roundish, and Jaterally com- 
pressed; commissure oblong-elliptic, flat. Seed 
gibbously convex, scored with 5 converging ob- 
_ tuse ridges, and 4 intermediate tuberculate 
‘grooves, : Ee 3 
' General involucrum wanting, or at most of 1 or 2 leaves; 
partial involucrum 5 or 6-leaved. Flowers regular. Calix 
obsolete, 5-toothed. Petals sordetely inflected: Siyies 
i ing; § su 1 . te 
ang Ses erage 
Specres. 1. C. maculata. Seva Lower ape ternate, 
aiianae tend lowes areats; leaflets sapeeiiine , almost 
aye 
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